window.onload = async function () {
  try {
    const res = await axios({
      url: 'http://ajax-api.itheima.net/dashboard',
      method: 'get',
      // 额外的设置请求头
      // 把登录之后的token 带到服务器
      // 接口/后端去校验 token是否正确
      // headers: {
      //   // msg这个值 只是用来的测试的 没有任何意义
      //   msg: 'good good study day day up',
      //   // 缓存中获取 token
      //   Authorization: localStorage.getItem('token'),
      // },
    })
    console.log('res:', res)

    const {
      data: { overview },
    } = res
    // console.log(overview)
    document.querySelector('span[name=salary').innerText = overview.salary
    document.querySelector('span[name=student_count').innerText =
      overview.student_count
    document.querySelector('span[name=age').innerText = overview.age
    document.querySelector('span[name=group_count').innerText =
      overview.group_count

    // console.log(res.data.year);
    setYear(res.data.year)

    setClass(res.data.salaryData)

    setTeam(res.data.groupData)
    // console.log(res.data.groupData);

    setSix(res.data.salaryData)

    initMapChart(res.data.provinceData)
  } catch (error) {
    console.dir(error)
  }
}

//创建折线图的函数
const setYear = (data) => {
  console.log(data)

  const chartDom = document.getElementById('line')

  const chart = echarts.init(chartDom)

  let option = {
    title: {
      text: '2022全学科薪资走向',
      top: '4%',
      left: '2%',
    },
    xAxis: {
      type: 'category',
      data: data.map((item) => item.month),
      axisLine: {
        lineStyle: {
          type: 'dashed',
          color: '#ccc',
        },
      },
      axisLabel: {
        color: '#999',
      },
    },
    yAxis: {
      type: 'value',
      // data: data.map((item) => item.salary),
      splitLine: {
        lineStyle: {
          type: 'dashed',
        },
      },
    },
    tooltip: { trigger: 'axis' },
    grid: {
      top: '20%',
    },
    color: [
      {
        type: 'linear',
        x: 0,
        y: 0,
        x2: 1,
        y2: 0,
        colorStops: [
          {
            offset: 0,
            color: '#499FEE', // 0% 处的颜色
          },
          {
            offset: 1,
            color: '#5D75F0', // 100% 处的颜色
          },
        ],
      },
    ],
    series: [
      {
        data: data.map((item) => item.salary),
        type: 'line',
        smooth: true,
        lineStyle: {
          width: 6,
        },
        symbolSize: 10,

        areaStyle: {
          color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
            {
              offset: 0,
              color: '#499FEE',
            },
            {
              offset: 0.8,
              color: 'rgba(255,255,255,0.2)',
            },
            {
              offset: 1,
              color: 'rgba(255,255,255,0)',
            },
          ]),
        },
      },
    ],
  }
  option && chart.setOption(option)
}

//创建饼图的函数
const setClass = (data) => {
  console.log(data)

  const chartDom = document.getElementById('salary')

  const chart = echarts.init(chartDom)

  let option = {
    //设置图表的标题和字体样式
    title: {
      text: '班级薪资分布',
      top: 15,
      left: 10,
      textStyle: {
        fontSize: 16,
      },
    },
    tooltip: {
      trigger: 'item',
    },
    legend: {
      bottom: '6%',
      left: 'center',
    },

    //设置调色盘
    color: ["#FDA224", "#5097FF", "#3ABCFA", "#34D39A"],

    series: [
      {
        name: '班级薪资分布',
        type: 'pie',
        radius: ['50%', '64%'],
        center:['50%','45%'],
        avoidLabelOverlap: false,
        itemStyle: {
          borderRadius: 10,
          borderColor: '#fff',
          borderWidth: 2,
        },
        label: {
          show: false,
          position: 'center',
        },
        labelLine: {
          show: false,
        },
        data: data.map(item => {
          return {
            name: item.label,
            value:item.b_count + item.g_count,
          }
        })
      },
    ],
  }
  option && chart.setOption(option)
}

//创建柱状图图的函数
const setTeam = (data) => {
  console.log(data)

  const chartDom = document.getElementById('lines')

  const chart = echarts.init(chartDom)

  let option = {
    grid: {
      left: 70,
      top: 30,
      right: 30,
      bottom: 50,
    },
    xAxis: {
      type: 'category',
      data: data[1].map((item) => item.name),
      axisLine: {
        lineStyle: {
          color: "#ccc",
          type: "dashed",
        },
      },
      axisLabel: {
        color: "#999",
      },
    },
      yAxis: {
        type: "value",
        splitLine: {
          lineStyle: {
            type: "dashed",
          },
        },
    },
    tooltip: {
      trigger: "item",
    },
    color: [
      {
        type: "linear",
        x: 0,
        y: 0,
        x2: 0,
        y2: 1,
        colorStops: [
          {
            offset: 0,
            color: "#34D39A", // 0% 处的颜色
          },
          {
            offset: 1,
            color: "rgba(52,211,154,0.2)", // 100% 处的颜色
          },
        ],
      },
      {
        type: "linear",
        x: 0,
        y: 0,
        x2: 0,
        y2: 1,
        colorStops: [
          {
            offset: 0,
            color: "#499FEE", // 0% 处的颜色
          },
          {
            offset: 1,
            color: "rgba(73,159,238,0.2)", // 100% 处的颜色
          },
        ],
      },
    ],
      series: [
        {
          data: data[1].map((item) => item.hope_salary),
          type: 'bar',
          name: '期望薪资',
        },
        {
          data: data[1].map((item) => item.salary),
          type: 'bar',
          name: '就业薪资',
        }
      ],
  }
  //生成图表
  option && chart.setOption(option)

  //获取元素
  const btns =document.querySelector('#btns')

  //绑定事件委托
  btns.addEventListener('click', function (e) {
    if (e.target.tagName = 'BUTTON') {
      console.log(e.target);
      let mm = e.target.innerText
      btns.querySelector('.btn-blue')?.classList.remove('btn-blue')
      e.target.classList.add('btn-blue')
      option.xAxis.data = data[mm].map((item) => item.name)
      option.series[0].data = data[mm].map((item) => item.hope_salary)
      option.series[1].data = data[mm].map((item) => item.salary)
      option && chart.setOption(option)
    }
  })

}

//男女薪资分布
const setSix = (data) => {
  console.log(data)

  const chartDom = document.getElementById('gender')

  const chart = echarts.init(chartDom)

  let option = {
    title: [{
      text: '男女薪资分布',
      textStyle: {
        fontSize: 22,
      },
      top: '2%',
      left:'5%',
    },
      {
        text: '男生',
        textStyle: {
          fontSize: 18,
        },
        top: '47%',
        left: '44%',
      },
      {
        text: '女生',
        textStyle: {
          fontSize: 18,
        },
        top: '92%',
        left:'44%',  },
    ],
    color: ['#FDA224', '#5097FF', '#3ABCFA', '#34D39A'],
    tooltip: {
      trigger: 'item'
    },
    // legend: {
    //   top: '5%',
    //   left: 'center'
    // },
    series: [
      {
        name: '薪资',
        type: 'pie',
        radius: ['30%', '50%'],
        center:['50%','30%'],
        // avoidLabelOverlap: false,
        // label: {
        //   show: false,
        //   position: 'center'
        // },
        // emphasis: {
        //   label: {
        //     show: true,
        //     fontSize: '40',
        //     fontWeight: 'bold'
        //   }
        // },
        // labelLine: {
        //   show: false
        // },
        data: data.map(item => {
          return {
           name: item.label,
           value: item.g_count
          }
          })
      },
      {
        name: '薪资',
        type: 'pie',
        radius: ['30%', '50%'],
        center:['50%','75%'],
        // avoidLabelOverlap: false,
        // label: {
        //   show: false,
        //   position: 'center'
        // },
        // emphasis: {
        //   label: {
        //     show: true,
        //     fontSize: '40',
        //     fontWeight: 'bold'
        //   }
        // },
        // labelLine: {
        //   show: false,
        // },
        data: data.map(item => {
         return {
          name: item.label,
          value: item.g_count
         }
         }),
      }
    ],
  };
  option && chart.setOption(option)
}

//中国地图
const initMapChart = (provinceData) => {
  console.log(provinceData);
  const myEchart = echarts.init(document.querySelector('#map'))
  
  const newData = provinceData.map(item => {
    return { name : item.name.replace(/省|市|自治区|特别行政区|壮族|回族|维吾尔/g,''),value: item.value }
  })
  const dataList = [
    { name: '南海诸岛', value: 0 },
    { name: '北京', value: 0 },
    { name: '天津', value: 0 },
    { name: '上海', value: 0 },
    { name: '重庆', value: 0 },
    { name: '河北', value: 0 },
    { name: '河南', value: 0 },
    { name: '云南', value: 0 },
    { name: '辽宁', value: 0 },
    { name: '黑龙江', value: 0 },
    { name: '湖南', value: 0 },
    { name: '安徽', value: 0 },
    { name: '山东', value: 0 },
    { name: '新疆', value: 0 },
    { name: '江苏', value: 0 },
    { name: '浙江', value: 0 },
    { name: '江西', value: 0 },
    { name: '湖北', value: 0 },
    { name: '广西', value: 0 },
    { name: '甘肃', value: 0 },
    { name: '山西', value: 0 },
    { name: '内蒙古', value: 0 },
    { name: '陕西', value: 0 },
    { name: '吉林', value: 0 },
    { name: '福建', value: 0 },
    { name: '贵州', value: 0 },
    { name: '广东', value: 0 },
    { name: '青海', value: 0 },
    { name: '西藏', value: 0 },
    { name: '四川', value: 0 },
    { name: '宁夏', value: 0 },
    { name: '海南', value: 0 },
    { name: '台湾', value: 0 },
    { name: '香港', value: 0 },
    { name: '澳门', value: 0 },
  ]
  dataList.forEach(x => {
    newData.forEach(y => {
      x.name === y.name && (x.value = y.value)
    })
  })
  let option = {
    title: {
      text: '籍贯分布',
      top: 10,
      left: 10,
      textStyle: {
        fontSize: 16,
      },
    },
    tooltip: {
      trigger: 'item',
      formatter: '{b}: {c} 位学员',
      borderColor: 'transparent',
      backgroundColor: 'rgba(0,0,0,0.5)',
      textStyle: {
        color: '#fff',
      },
    },
    visualMap: {
      min: 0,
      max: 6,
      left: 'left',
      bottom: '20',
      text: ['6', '0'],
      inRange: {
        color: ['#ffffff', '#0075F0'],
      },
      show: true,
      left: 40,
    },
    geo: {
      map: 'china',
      roam: false,
      zoom: 1.0,
      label: {
        normal: {
          show: true,
          fontSize: '10',
          color: 'rgba(0,0,0,0.7)',
        },
      },
      itemStyle: {
        normal: {
          borderColor: 'rgba(0, 0, 0, 0.2)',
          color: '#e0ffff',
        },
        emphasis: {
          areaColor: '#34D39A',
          shadowOffsetX: 0,
          shadowOffsetY: 0,
          shadowBlur: 20,
          borderWidth: 0,
          shadowColor: 'rgba(0, 0, 0, 0.5)',
        },
      },
    },
    series: [
      {
        name: '籍贯分布',
        type: 'map',
        geoIndex: 0,
        data: dataList,
      },
    ],
  }
  myEchart.setOption(option)
}



